Date: Tue, 4 Jun 2019 03:31:37 -0700 From: Enji Cooper <yaneurabeya@gmail.com> To: Michael Zhilin <mizhka@gmail.com> Cc: Alexandru Goia <bsdunix99@gmail.com>, Freebsd hackers list <freebsd-hackers@freebsd.org> Subject: Re: sysctl Message-ID: <AA8EDB82-F82B-4F2F-AC6C-CD072CF09A33@gmail.com> In-Reply-To: <CAF19XBKWrNfku8n_tZCL7jxWijHavJK7hsssvWXy%2BPK9Wznu5A@mail.gmail.com> References: <CAJvjfr4p-3vEeCAvYC=s_v=4f9BvGfcwWGyra2KKN6nLdPKGsA@mail.gmail.com> <CAF19XBKWrNfku8n_tZCL7jxWijHavJK7hsssvWXy%2BPK9Wznu5A@mail.gmail.com>
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> On Jun 4, 2019, at 02:29, Michael Zhilin <mizhka@gmail.com> wrote: > > Hi, > > What do you mean under "5 hundred"? > On 13-CURRENT with few modules incl ZFS, "sysctl -NTa" shows around 8 > hundred variables. As Michael noted, there are a variable number of sysctls, generally ranging in the hundreds or thousands, for controlling or querying system components/properties. The user can optionally specify a description for a sysctl, which can be queries via “sysctl -d” (see “man 8 sysctl for more details). There should also be a description of the sysctl in the implementing subsystem manpage, e.g., “man 4 inet” briefly describes the IPv4 stack and some of its sysctl knobs. However, there are gaps, e.g., Linux compat hooks which convert sysfs entries to sysctls. Good luck :). -Enjihelp
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